ikiwiki/IkiWiki/Plugin/smiley.pm

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#!/usr/bin/perl
package IkiWiki::Plugin::smiley;
use warnings;
use strict;
use IkiWiki 2.00;
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my %smileys;
my $smiley_regexp;
sub import { #{{{
hook(type => "filter", id => "smiley", call => \&filter);
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} # }}}
sub build_regexp () { #{{{
my $list=readfile(srcfile("smileys.mdwn"));
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while ($list =~ m/^\s*\*\s+\\([^\s]+)\s+\[\[([^]]+)\]\]/mg) {
$smileys{$1}=$2;
}
if (! %smileys) {
debug(gettext("failed to parse any smileys"));
$smiley_regexp='';
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return;
}
# sort and reverse so that substrings come after longer strings
# that contain them, in most cases.
$smiley_regexp='('.join('|', map { quotemeta }
reverse sort keys %smileys).')';
#debug($smiley_regexp);
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} #}}}
sub filter (@) { #{{{
my %params=@_;
build_regexp() unless defined $smiley_regexp;
$params{content} =~ s{(?:^|(?<=\s))(\\?)$smiley_regexp(?:(?=\s)|$)}{
$1 ? $2 : htmllink($params{page}, $params{page}, $smileys{$2}, linktext => $2)
}egs if length $smiley_regexp;
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return $params{content};
} # }}}
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